I. Introduction
Ride Comfort is the comfortness of noise, vibration and motion inside a vehicle, experienced by both driver as well as the passengers. ISO 2631 whole-body vibration certification testing covers the comfort, safety and health of the passengers subjected to it. The assessment of ride comfort consists of the four domains, namely, seat vibration, steering wheel vibration, interior noise and general handling in motion of the vehicle. Seat vibration deals with ISO whole-body vibration and absorption of vibration by the passenger and driver when on-board. Steering wheel vibration is due to tire unbalance. Interior noise in the vehicle deals with the averaged overall sound pressure level and sound metrics such as loudness, sharpness and roughness of the noise. General handling in motion of the vehicle is due to braking force, where it will affect the comfort of the passenger and driver in terms of drivability comfort. Measuring and quantifying ride comfort can help meeting the necessary standards and regulations. It also helps to troubleshoot, understand and improve the noise and vibration comfort in the vehicle [1].